ASTM A53 / A53M Grade A

Chemical Properties

Element
Type S Type E Type F
Carbon 0.25 0.25 0.30
Manganese 0.95 0.95 1.20
Phosphorus 0.05 0.05 0.05
Sulfur 0.045 0.045 0.045
CopperA 0.40 0.40 0.40
NickelA 0.40 0.40 0.40
ChromiumA 0.40 0.40 0.40
MolybdenumA 0.15 0.15 0.15
VanadiumA 0.08 0.08 0.08
Note: [A] The total composition for these five elements shall not exceed 1.00 %.

Mechanical Properties

Tensile strength, min, psi [MPa] Yield strength, min, psi [MPa] Elongation in 2 in. or 50 mm
48 000 [330] 30 000 [205] A,B
Note A: The minimum elongation in 2 in. [50 mm] shall be that determined by the following equation:
e = 625000 [1940] A0.2 / U 0.9
where: e = minimum elongation in 2 in. or 50 mm in percent, rounded to the nearest percent
A = the lesser of 0.75 in.2 [500 mm2] and the cross-sectional area of the tension test specimen, calculated using the specified outside diameter of the pipe, or the nominal width of the tension test specimen and the specified wall thickness of the pipe, with the calculated value rounded to the nearest 0.01 in.2 [1 mm2]
and U = specified minimum tensile strength, psi [MPa].
Note B: For the minimum elongation values that are required for various combinations of tension test specimen size and specified minimum tensile strength,whichever is applicable

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